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Ultrathin Bi Nanosheets with Superior Photoluminescence
Author(s) -
Hussain Naveed,
Liang Tongxiang,
Zhang Qingyun,
Anwar Tauseef,
Huang Ya,
Lang Jiangliang,
Huang Kai,
Wu Hui
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201701349
Subject(s) - materials science , nanotechnology , nanomaterials , fabrication , photoluminescence , silicon , graphene , nanoparticle , optoelectronics , medicine , alternative medicine , pathology
Despite substantial progress in the science and technology of 2D nanomaterials, facile fabrication of ultrathin 2D metals remains challenging. Herein, an efficient hot‐pressing method is developed to fabricate free‐standing ultrathin Bi nanosheets from Bi nanoparticles. Highly crystalline Bi nanosheets with thickness as low as ≈2 nm and area of more than several micrometers are successfully fabricated on silicon substrates. The ultrathin Bi nanosheets exhibit morphology and structural dependent enhanced broad range photoemission in visible region of spectrum. Our cost‐effective hot‐pressing strategy may open an insight for production, application, and deficient fundamental understanding of other 2D semimetals/metalloids and noble metals.